A harmful gas detection device for a deep well aluminum liquid aluminum smelting furnace

Abstract

The utility model discloses a kind of deep well aluminium cast aluminium liquid smelting furnace harmful gas detection devices, it is related to smelting gas detection technical field, including smelting furnace and the furnace cover of upper end thereof, control electric box and gas detector are equipped on the furnace cover;The deep well aluminium cast aluminium liquid smelting furnace harmful gas detection device;Through the annular gas-collecting component and multiple gas inlets of being set around smelting furnace, the harmful gas that dissipates in each direction around smelting furnace can be collected in all directions, completely eliminates detection blind area, significantly improves the comprehensiveness and reliability of detection. Sensitivity and response speed of detection are improved by using negative pressure air extraction mode to actively transport the collected gas to gas detector. The rubber sealing cap of gas inlet pipe top and its cross-shaped gas slit design can be effectively sealed when there is no air extraction, prevent foreign matter from falling into to block pipeline, ensure long-term stable operation of air extraction pump and detection instrument;When air extraction, gas slit is opened by negative pressure deformation, ensure that gas enters smoothly, simple and ingenious structure, strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of smelting gas detection technology, specifically a device for detecting harmful gases in a deep-well aluminum casting molten aluminum furnace. Background Technology

[0002] During the deep-well aluminum casting process, the smelting furnace generates a large amount of harmful gases, such as hydrogen sulfide, carbon monoxide, and volatile organic compounds. These gases pose a serious threat to production safety and personnel health. Traditional hazardous gas detection devices typically have only one fixed detection point above the smelting furnace, resulting in a limited detection range. Since harmful gases can escape from different locations such as the sides or gaps of the furnace, a single detection point cannot comprehensively and effectively monitor gas leaks throughout the entire furnace perimeter, creating blind spots and hindering timely warnings, thus leading to safety hazards.

[0003] Therefore, there is an urgent need for a hazardous gas detection device that can expand the detection range. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a harmful gas detection device for deep-well aluminum casting molten aluminum furnaces, which solves the problem of gas detection during smelting. The annular gas collecting component can improve the detection range and enhance safety.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a harmful gas detection device for a deep-well aluminum casting molten aluminum furnace, comprising a smelting furnace and a furnace cover at its upper end, wherein a control box and a gas detector are provided on the furnace cover, the gas detector is connected to an inlet pipe, and an annular gas collecting component is arranged around the outside of the smelting furnace; the annular gas collecting component includes a suction pump, the lower end of which is fixedly connected to a connecting pipe, the outlet of which is connected to the inlet pipe, and multiple gas collection ports for collecting gas are distributed on the annular gas collecting component, and the suction pump is fixed below the gas detector.

[0006] Furthermore: the annular gas collecting component includes a circular tube that surrounds and is fixed to the outside of the smelting furnace, and the circular tube is connected to a connecting pipe.

[0007] Furthermore: multiple clamping plates are fixed on the outside of the smelting furnace, and the clamping plates are provided with clamping slots, in which the circular tube is clamped.

[0008] Furthermore: the circular tube is provided with an air collection pipe, which is connected to the interior of the circular tube and is arranged perpendicular to the circular tube.

[0009] Furthermore, a rubber cap is fixed to the upper opening of the air collection pipe, and an air slit is provided on the cap.

[0010] Furthermore, the air gap is a cross-shaped gap.

[0011] This invention provides a device for detecting harmful gases in a deep-well aluminum casting molten aluminum furnace. Compared with the prior art, it has the following advantages: This device for detecting harmful gases from a deep-well aluminum casting molten metal smelting furnace utilizes a ring-shaped gas collecting component and multiple gas collection ports surrounding the furnace to collect harmful gases escaping from all directions, completely eliminating blind spots and significantly improving the comprehensiveness and reliability of detection. A negative pressure extraction method is used to actively transport the collected gas to the gas detector, enhancing detection sensitivity and response speed. The rubber cap at the top of the gas collection pipe and its cross-shaped air slit design effectively seal the pipe when there is no extraction, preventing foreign objects from falling in and clogging the pipe, ensuring the long-term stable operation of the extraction pump and detection instrument. During extraction, the air slit expands due to negative pressure deformation, ensuring smooth gas entry. The device features a simple and ingenious structure with high practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the furnace cover and control box of this utility model; Figure 3 for Figure 1 Enlarged structural diagram at point A; Figure 4 for Figure 2 Enlarged structural diagram at point B.

[0013] In the diagram: 1. Smelting furnace; 2. Furnace cover; 3. Control box; 4. Gas detector; 5. Inlet pipe; 6. Card plate; 7. Card slot; 8. Circular pipe; 9. Gas collection pipe; 10. Sealing cap; 11. Gas gap; 12. Air pump; 13. Connecting pipe. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4This utility model provides a technical solution: a harmful gas detection device for a deep-well aluminum casting molten aluminum smelting furnace; specifically, it includes a smelting furnace 1, a furnace cover 2 covering the upper end of the smelting furnace 1, a control box 3 fixed to the upper end of the furnace cover 2, a gas detector 4 fixedly connected to the outside of the control box 3 by screws, an inlet pipe 5 fixed to the lower end of the gas detector 4, the inlet pipe 5 collecting the gas emitted from the periphery of the smelting furnace 1, and the gas detector 4 can detect harmful gases, which is prior art and will not be described in detail here; four clamping plates 6 are fixedly connected to the outside of the smelting furnace 1 in four directions, a clamping groove 7 is opened at the upper end of the clamping plate 6, a circular tube 8 is clamped inside the clamping groove 7, and a connecting wire is fixed between the upper and lower ends of the circular tube 8. The gas collecting pipe 9 has a cap 10 fixed at its upper end. The cap 10 has air slits 11 at its upper and lower ends. A vacuum pump 12 is connected below the gas detector 4. The upper end of the vacuum pump 12 is connected to the air inlet pipe 5. A connecting pipe 13 is fixedly connected to the lower end of the vacuum pump 12. The connecting pipe 13 is connected to the circular pipe 8. The vacuum pump 12 drives the air inside the connecting pipe 13 to flow. The connecting pipe 13 drives the air inside the circular pipe 8 to flow, generating negative pressure. The circular pipe 8 further drives the air inside the gas collecting pipe 9 to flow, generating negative pressure. The circular pipe 8 is distributed on the outer side of the smelting furnace 1, which can better collect the gas emitted from the periphery of the smelting furnace 1, thereby achieving a better detection effect.

[0016] The cap 10 is made of rubber. The internal negative pressure can cause the air gap 11 to deform. After the air gap 11 deforms, it can collect the gas on the upper and lower sides of the melting furnace 1, thereby achieving a better detection effect compared with the traditional method.

[0017] The air gap 11 is designed in a cross shape. The sealing cap 10 can prevent foreign objects from falling into the air collection pipe 9 and affecting the air pump 12 for air extraction detection.

Claims

1. A device for detecting harmful gases in a deep-well aluminum casting molten metal smelting furnace, comprising a smelting furnace (1) and a furnace cover (2) at its upper end, wherein a control box (3) and a gas detector (4) are provided on the furnace cover (2), and the gas detector (4) is connected to an inlet pipe (5), characterized in that: The outer side of the smelting furnace (1) is surrounded by an annular gas collecting component; The annular gas collecting component includes a vacuum pump (12), the lower end of which is fixedly connected to a connecting pipe (13). The outlet of the vacuum pump (12) is connected to the inlet pipe (5). The annular gas collecting component is provided with multiple gas collection ports for collecting gas. The vacuum pump (12) is fixed below the gas detector (4).

2. The harmful gas detection device for a deep-well aluminum casting molten aluminum furnace according to claim 1, characterized in that: The annular gas collecting component includes a circular tube (8) that surrounds and is fixed to the outside of the smelting furnace (1), and the circular tube (8) is connected to the connecting pipe (13).

3. The harmful gas detection device for a deep-well aluminum casting molten aluminum furnace according to claim 2, characterized in that: Multiple clamping plates (6) are fixed on the outside of the smelting furnace (1). The clamping plates (6) have slots (7) and the circular tube (8) is clamped in the slots (7).

4. The harmful gas detection device for a deep-well aluminum casting molten aluminum furnace according to claim 2, characterized in that: A gas collecting pipe (9) is provided on the circular tube (8). The gas collecting pipe (9) is connected to the inside of the circular tube (8) and is arranged perpendicular to the circular tube (8).

5. The harmful gas detection device for a deep-well aluminum casting molten aluminum furnace according to claim 4, characterized in that: A rubber cap (10) is fixed at the upper opening of the air collection pipe (9), and an air slit (11) is provided on the cap (10).

6. The harmful gas detection device for a deep-well aluminum casting molten aluminum furnace according to claim 5, characterized in that: The air gap (11) is a cross-shaped gap.

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